Manipulator for feed-tables of rolling-mills.



No. 721,626. ,PATENTED FEB. 24,;1903.

v s .T. & G.H.YWELLM'AN. MANIPIILATOR FOR FEED TABLES OF ROLLING-MILLS.APPLICATION FILED FEB. 19, 1902.

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PATEN-TED FEB. 24,1903.

s. & 0. H. WELLMAN. MANIPULATOR on FEED TABLES 0P ROLLING MILLS.

APPLICATION FILED PEBJIQ. 1902.

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2 UNITED STATES PATENT OFFICE.

SAMUEL T. WELLMAN AND CHARLES H. WELLMAN, OF CLEVELAND, OHIO,

ASSIGNORS, BY MESNE ASSIGNMENTS, TO SAMUEL T. WELLMAN, JULIAN KENNEDY,OF PITTSBURG, PENNSYLVANIA.

AND

MANIPUILATOR FOR FEEDV-V-TABLE'S OF ROLLING-MILLS.

SPECIFICATION forming part of Letters Patent No. 721,626, dated February24, 1903.

Application filed February 19, 1902. Serial No. 94,754. No model-D Toall whom it may concern.-

Be it known that we, SAMUEL'T. WELLMAN and CHARLES H. WELLMAN, citizensof the United States, and residents of Cleveland,

5 Ohio, have invented certain Improvements in Manipulators forFeed-Tables of Rolling- Mills, of which thefollowingis aspecification.

The object of our invention is to provide the feed-table of arolling-mill with means whereby'the manipulation of an ingot, bloom,billet, or slab can be readily effected, the mechanism providing for theturning of the ingot,bloom, billet, or slab on the table; also,

for the support in an upright position of com paratively thin slabswhereby the latter will be properly directed to the grooves of the rollsand will have the desired square edges formed'upon them by said rolls.

In the accompanying drawings, Figure 1 is a plan view of sufficient of arolling-mill to illustrate our present invention. Fig. 2 is a transversesection of the same on the line a a, Fig.

1; and Fig. 3 is a longitudinal section on. the line b b, Fig. l.

1 1 represent the rolls of the mill, and 2 the rollers of thefeed-tables on opposite sides of said rolls 1, the rolls and feed-tablesbeing of any ordinary construction, as this forms no part of our presentinvention, the latter be- 0 ing limited to devices for manipulating andsupporting the ingot, bloom, billet, or slab upon the feed-table, so asto insure the proper presentation of the same to the rolls.

Above each of theroller feed-tables are a 3 5 pair of longitudinalguide-bars 3, each carried by a rigid longitudinal supporting structure1, mounted so as to be free to slide laterally upon the fixed structure5 of the roller-table,

a part of each of these longitudinal structures.

with the like guide-bar of the other feed-ta- Qeither joint orindependent operation, whereso as to be free to move laterally a wheeledble, wherebycorresponding guide-bars of each table are caused to movelaterally in unison with each other.

One of the racks 6 of each guide-bar structure is connected tothepiston-rod of a hydraulic or other power-actuated cylinder 12,whereby the guide-bars 3 of each feed-table may be caused to movefromand toward each other, said guide-bars being susceptible of by. theymay be caused to move the ingot,

' bloom, or billet laterally in either direction across the rollers ofthe feed-table, so as to directit to any desired portions of the rolls l'or may be moved as closely together as demovement to the guide-bars 3,the power-cylinders being preferred as the most convenient and effectivemeans for the purpose.

One of thefeed-tables is provided with a manipulator consisting of meansfor imparting a quarter-turn or successive quarter-turns to an ingot,bloom, billet, or slab upon the feed-rollers independently of theguide-bars 3, and, if desired, both of the feed-tables may be providedwith such means.

In a pit beneath the feed-table is mounted a power-cylinder 13,thepiston-rod of which is provided with a cross-head 14:, suitablyguided, so as to-move vertically beneath the feed-table, and on thiscross-head is mounted 9o truck or carriage 15, which is connected bypivoted rods 16 to a cross-head 17, suitably guided at one side of thefeed-table and connected to the piston-rod of a power-cylinder 19,whereby'it may be moved laterally, so as 9 5 to impart correspondinglateral movement to the truck or carriage 15, Whatever may be theposition of vertical adjustment of the crosshead 14:,upon which saidcarriage is mounted.

, Projecting upwardly from the carriage l5 roe and between rollers 2 ofthe feed-table are a series of fingers 20, constituting the members ofthe manipulator which act upon the metal under treatment, these fingersbeing preferably notched at their upper ends, the length of thesefingers being such that when the cross-head 14 is in its lowermostposition the tops of the fingers will be below the level of the tops ofthe rollers 2, and hence will not interfere with the free longitudinalmovement of an ingot, bloom, billet, or slab over the same. When,however, the fingers are raised beneath such ingot, bloom, billet, orslab adjacent to one edge of the latter, that edge will be lifted, andin the case of an ingot, bloom, or billet the same will be turned overupon the feed-rollers 2, so as to present fresh sides of the same to theaction of the rolls 1, or in the case of a slab the same will be liftedfrom a flat to an upright position, in which upright position it can bemaintained by the proper adjustment of the guide-bars 3.

Owing to the fact that the fingers 20 have lateral as well as verticalmovement they may be caused to act upon the ingot, bloom, billet, orslab to impart lateral movement thereto independently of the action ofthe guidebars Other means than the power-cylinders 13 and 19 may beemployed for imparting vertical movement to the cross-head 13 andlateral movement to the carriage 15, power-cylinders, however, being,preferred.

Having thus described our invention, we claim and desire to secure byLetters Patent 1. The combination of a feed-table of a rolling-mill,with longitudinal guide-bars and supporting structures whereby said barsare mounted above the feed-table, racks on said supporting structuresprojecting laterally beyond the feed-table, and shafts one for each bar,said shafts being arranged alongside of but laterally beyond andparallel with the feed-table and having pinions engaging said racks,substantially as specified.

2. The combination of the opposite feedtables of a rolling-mill,guide-bars mounted above each of said feed-tables, mechanism wherebyeach guide-bar of each table can be moved laterally from and toward theother While still remaining parallel with each other and with a line ata right angle to the axes of the rolls, and connecting devices wherebycorresponding guide bars of the opposite tables are caused to move inunison, substantially as specified.

3. The combination of the opposite feedtables of a rolling-mill,guide-bars mounted above each of said feed-tables, supporting structuresfor said guide-bars, projecting racks on said supporting structures, andtwo shafts, one having pinions engaging with the racks of one of theguide-bar structures of each table, and the other having pinionseugaging with the racks of the other guide-bar structure of each table,substantially as specified.

4. The combination of the feed-table of a rolling-mill, withvertically-movable fingers for turning on its edge a slab resting uponsaid table, and guide-bars movable laterally from and toward each otherfor engaging and supporting the upturned slab, substantially asspecified.

5. The combination of the feed-table of a rolling-mill, with fingers forturning on its edge a slab lying upon said table, said fingers beingmounted so as to have both vertical and lateral movement, and guide-barsmovable laterally from and toward each other, for engaging andsupporting the upturned slab, substantially as specified.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

SAMUEL T. WELLMAN. CHARLES H. VVELLMAN.

Witnesses:

C. W. COMSTOOK, HERBERT S. GLIDDEN.

